Foxworth was born in Oxford, England, but his family relocated to Maryland when Foxworth was kindergarten-aged.[1] Foxworth attended to Western Tech high school, where he was named the Baltimore Sun's first-team All-Metro and All-Baltimore County.[1]

In addition to his work on the field, Foxworth has also held a number of positions with the NFL Players Association.[9] In 2007, the Broncos elected Foxworth as an NFLPA player representative, and the following year he became the youngest player to become vice president of the NFLPA Executive Committee.[9]

In 2012, Foxworth was elected president of the NFLPA without opposition.[9] He was succeeded by Eric Winston in March 2014.[10]

While with the Denver Broncos, Foxworth worked with the Boys & Girls Clubs of America, taking a leading role in the fundraising and planning for the Darrent Williams Memorial Teen Center, a social and scholastic retreat for teens, named in honor of murdered Broncos player Darrent Williams.[13] Foxworth also created Baltimore BORN Inc to provide lower income high school boys with resources and networking opportunities.[14] In 2010, Foxworth received the first annual Tim Wheatley Award from the Baltimore Sun Media Group for his community service work.[14]